[Bug 258949] IPv4 alias on Chelsio T6225-CR, ping: sendto: No route to host
Date: Tue, 05 Oct 2021 16:15:06 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=258949
Bug ID: 258949
Summary: IPv4 alias on Chelsio T6225-CR, ping: sendto: No route
to host
Product: Base System
Version: 13.0-RELEASE
Hardware: amd64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: kern
Assignee: bugs@FreeBSD.org
Reporter: jasonmader@gmail.com
FreeBSD 13.0-RELEASE-p4
I haven't been able to recreate this on anything other than a system with the
Chelsio T6225-CR, but an IPv4 alias only (IPv6 aliases work fine) with a /32
netmask such as, 129.174.130.141/32, doesn't work,
cc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000
options=6e80723<RXCSUM,TXCSUM,JUMBO_MTU,TSO4,TSO6,LRO,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6,HWRXTSTMP,NOMAP>
inet 129.174.130.140 netmask 0xffffffe0 broadcast 129.174.130.159
inet 129.174.130.141 netmask 0xffffffff broadcast 129.174.130.141
PING 129.174.130.141 (129.174.130.141): 56 data bytes
ping: sendto: No route to host
But change the netmask to /31 and the ping will work.
ifconfig_cc0="inet 129.174.130.140/27 mtu 9000"
ifconfig_cc0_alias0="inet 129.174.130.141/32"
Internet:
Destination Gateway Flags Netif Expire
129.174.130.128/27 link#1 U cc0
129.174.130.140 link#1 UHS lo0
129.174.130.141 link#1 UH cc0
On FreeBSD 11.2 with an Intel interface it would have looked like,
129.174.130.128/27 link#1 U ix0
129.174.130.140 link#1 UHS lo0
129.174.130.141 link#1 UHS lo0
129.174.130.141/32 link#1 U ix0
t6nex0: <Chelsio T6225-CR> mem
0xdb200000-0xdb27ffff,0xda000000-0xdaffffff,0xdb684000-0xdb685fff irq 120 at
device 0.4 on pci12
cc0: <port 0> on t6nex0
cc1: <port 1> on t6nex0
t6nex0: PCIe gen3 x8, 2 ports, 22 MSI-X interrupts, 70 eq, 21 iq
--
You are receiving this mail because:
You are the assignee for the bug.